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US 11,530,137 B2Granted
Acidic ferrate composition and methods of making ferrate
AssigneePhosphorus Free Water Solutions, LLC
InventorsDonald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torres
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Abstract
Various embodiments relate to an acidic ferrate composition and methods of making ferrate. A method of forming ferrate includes treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form ferrate.
Claims13
A method of making ferrate, the method comprising:
- treating ferric chloride (FeCl3) with an oxidizer in an aqueous solution having a pH of about 1 to about 5 under conditions sufficient to form an aqueous composition comprising ferrate;
- wherein
- the ferric chloride and the oxidizer have a molar ratio of about 1:1 to about 1:3, and
- the oxidizer comprises potassium permanganate, potassium dichromate, potassium chlorate, potassium persulfate, sodium persulfate, perchloric acid, peracetic acid, potassium monopersulfate, hydrogen peroxide, sodium hypochlorite, potassium hypochlorite, ozone, or a combination thereof.
1 more element
A method of making ferrate, the method comprising:
- treating ferric chloride with an oxidizer in an aqueous solution comprising HCl and having a pH of about 1 to about 5 under conditions sufficient to form ferrate, wherein the ferric chloride and the oxidizer have a molar ratio of about 1:1 to about 1:3.
A method of making ferrate, the method comprising:
- treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form an aqueous ferrate composition comprising ferrate ([FeO4]2−), the aqueous ferrate composition having a pH of less than 7.
Dependencies are inferred from the claim text.